|
1 |
| -``gcloud.pubsub`` API |
2 |
| -===================== |
| 1 | +.. toctree:: |
| 2 | + :maxdepth: 1 |
| 3 | + :hidden: |
3 | 4 |
|
4 |
| -Connection / Authorization |
5 |
| --------------------------- |
| 5 | +Pub/Sub |
| 6 | +------- |
6 | 7 |
|
7 |
| -- Inferred defaults used to create connection if none configured explicitly: |
| 8 | +:mod:`gcloud.pubsub` |
| 9 | +~~~~~~~~~~~~~~~~~~~~~~~ |
8 | 10 |
|
9 |
| - - credentials (derived from GAE / GCE environ if present). |
| 11 | +.. automodule:: gcloud.pubsub.__init__ |
| 12 | + :members: |
| 13 | + :undoc-members: |
| 14 | + :show-inheritance: |
10 | 15 |
|
11 |
| - - ``project_id`` (derived from GAE / GCE environ if present). |
| 16 | +Connections |
| 17 | +~~~~~~~~~~~ |
12 | 18 |
|
13 |
| - - ``scopes`` |
| 19 | +.. automodule:: gcloud.pubsub.connection |
| 20 | + :members: |
| 21 | + :undoc-members: |
| 22 | + :show-inheritance: |
14 | 23 |
|
| 24 | +Interacting with the API |
| 25 | +~~~~~~~~~~~~~~~~~~~~~~~~ |
15 | 26 |
|
16 |
| -Manage topics for a project |
17 |
| ---------------------------- |
18 |
| - |
19 |
| -Create a new topic for the default project: |
20 |
| - |
21 |
| -.. doctest:: |
22 |
| - |
23 |
| - >>> from gcloud.pubsub.topic import Topic |
24 |
| - >>> topic = Topic('topic_name') |
25 |
| - >>> topic.create() # API request |
26 |
| - |
27 |
| -Create a new topic for an explicit project: |
28 |
| - |
29 |
| -.. doctest:: |
30 |
| - |
31 |
| - >>> from gcloud.pubsub.topic import Topic |
32 |
| - >>> topic = Topic('topic_name', project_id='my.project') |
33 |
| - >>> topic.create() # API request |
34 |
| - |
35 |
| -Check for the existance of a topic: |
36 |
| - |
37 |
| -.. doctest:: |
38 |
| - |
39 |
| - >>> from gcloud.pubsub.topic import Topic |
40 |
| - >>> topic = Topic('topic_name') |
41 |
| - >>> topic.exists() # API request |
42 |
| - True |
43 |
| - |
44 |
| -List topics for the default project: |
45 |
| - |
46 |
| -.. doctest:: |
47 |
| - |
48 |
| - >>> from gcloud import pubsub |
49 |
| - >>> [topic.name for topic in pubsub.list_topics()] # API request |
50 |
| - ['topic_name'] |
51 |
| - |
52 |
| -List topics for an explicit project: |
53 |
| - |
54 |
| -.. doctest:: |
55 |
| - |
56 |
| - >>> from gcloud import pubsub |
57 |
| - >>> topics = pubsub.list_topics(project_id='my.project') # API request |
58 |
| - >>> [topic.name for topic in topics] |
59 |
| - ['topic_name'] |
60 |
| - |
61 |
| -Delete a topic: |
62 |
| - |
63 |
| -.. doctest:: |
64 |
| - |
65 |
| - >>> from gcloud.pubsub.topic import Topic |
66 |
| - >>> topic = Topic('topic_name') |
67 |
| - >>> topic.delete() # API request |
68 |
| - |
69 |
| - |
70 |
| -Publish messages to a topic |
71 |
| ---------------------------- |
72 |
| - |
73 |
| -Publish a single message to a topic, without attributes: |
74 |
| - |
75 |
| -.. doctest:: |
76 |
| - |
77 |
| - >>> from gcloud.pubsub.topic import Topic |
78 |
| - >>> topic = Topic('topic_name') |
79 |
| - >>> topic.publish('this is the message_payload') # API request |
80 |
| - <message_id> |
81 |
| - |
82 |
| -Publish a single message to a topic, with attributes: |
83 |
| - |
84 |
| -.. doctest:: |
85 |
| - |
86 |
| - >>> from gcloud.pubsub.topic import Topic |
87 |
| - >>> topic = Topic('topic_name') |
88 |
| - >>> topic.publish('this is another message_payload', |
89 |
| - ... attr1='value1', attr2='value2') # API request |
90 |
| - <message_id> |
91 |
| - |
92 |
| -Publish a set of messages to a topic (as a single request): |
93 |
| - |
94 |
| -.. doctest:: |
95 |
| - |
96 |
| - >>> from gcloud.pubsub.topic import Topic |
97 |
| - >>> topic = Topic('topic_name') |
98 |
| - >>> with topic.batch() as batch: |
99 |
| - ... batch.publish('this is the first message_payload') |
100 |
| - ... batch.publish('this is the second message_payload', |
101 |
| - ... attr1='value1', attr2='value2') |
102 |
| - >>> list(batch) |
103 |
| - [<message_id1>, <message_id2>] |
104 |
| - |
105 |
| -.. note:: |
106 |
| - |
107 |
| - The only API request happens during the ``__exit__()`` of the topic |
108 |
| - used as a context manager. |
109 |
| - |
110 |
| - |
111 |
| -Manage subscriptions to topics |
112 |
| ------------------------------- |
113 |
| - |
114 |
| -Create a new pull subscription for a topic: |
115 |
| - |
116 |
| -.. doctest:: |
117 |
| - |
118 |
| - >>> from gcloud.pubsub.topic import Topic |
119 |
| - >>> from gcloud.pubsub.subscription import Subscription |
120 |
| - >>> topic = Topic('topic_name') |
121 |
| - >>> subscription = Subscription('subscription_name', topic) |
122 |
| - >>> subscription.create() # API request |
123 |
| - |
124 |
| -Create a new pull subscription for a topic with a non-default ACK deadline: |
125 |
| - |
126 |
| -.. doctest:: |
127 |
| - |
128 |
| - >>> from gcloud.pubsub.topic import Topic |
129 |
| - >>> from gcloud.pubsub.subscription import Subscription |
130 |
| - >>> topic = Topic('topic_name') |
131 |
| - >>> subscription = Subscription('subscription_name', ack_deadline=90) |
132 |
| - >>> subscription.create() # API request |
133 |
| - |
134 |
| -Create a new push subscription for a topic: |
135 |
| - |
136 |
| -.. doctest:: |
137 |
| - |
138 |
| - >>> ENDPOINT = 'https://example.com/hook' |
139 |
| - >>> from gcloud.pubsub.topic import Topic |
140 |
| - >>> from gcloud.pubsub.subscription import Subscription |
141 |
| - >>> topic = Topic('topic_name') |
142 |
| - >>> subscription = Subscription('subscription_name', push_endpoint=ENDPOINT) |
143 |
| - >>> subscription.create() # API request |
144 |
| - |
145 |
| -Check for the existence of a subscription: |
146 |
| - |
147 |
| -.. doctest:: |
148 |
| - |
149 |
| - >>> from gcloud.pubsub.topic import Topic |
150 |
| - >>> from gcloud.pubsub.subscription import Subscription |
151 |
| - >>> topic = Topic('topic_name') |
152 |
| - >>> subscription = Subscription('subscription_name', topic) |
153 |
| - >>> subscription.exists() # API request |
154 |
| - True |
155 |
| - |
156 |
| -Convert a pull subscription to push: |
157 |
| - |
158 |
| -.. doctest:: |
159 |
| - |
160 |
| - >>> ENDPOINT = 'https://example.com/hook' |
161 |
| - >>> from gcloud.pubsub.topic import Topic |
162 |
| - >>> from gcloud.pubsub.subscription import Subscription |
163 |
| - >>> topic = Topic('topic_name') |
164 |
| - >>> subscription = Subscription('subscription_name', topic) |
165 |
| - >>> subscription.modify_push_configuration(push_endpoint=ENDPOINT) # API request |
166 |
| - |
167 |
| -Convert a push subscription to pull: |
168 |
| - |
169 |
| -.. doctest:: |
170 |
| - |
171 |
| - >>> ENDPOINT = 'https://example.com/hook' |
172 |
| - >>> from gcloud.pubsub.topic import Topic |
173 |
| - >>> topic = Topic('topic_name') |
174 |
| - >>> subscription = Subscription('subscription_name', topic, |
175 |
| - ... push_endpoint=ENDPOINT) |
176 |
| - >>> subscription.modify_push_configuration(push_endpoint=None) # API request |
177 |
| - |
178 |
| -List subscriptions for a topic: |
179 |
| - |
180 |
| -.. doctest:: |
181 |
| - |
182 |
| - >>> from gcloud.pubsub.topic import Topic |
183 |
| - >>> topic = Topic('topic_name') |
184 |
| - >>> subscriptions = topic.list_subscriptions() # API request |
185 |
| - >>> [subscription.name for subscription in subscriptions] |
186 |
| - ['subscription_name'] |
187 |
| - |
188 |
| -Delete a subscription: |
189 |
| - |
190 |
| -.. doctest:: |
191 |
| - |
192 |
| - >>> from gcloud.pubsub.topic import Topic |
193 |
| - >>> from gcloud.pubsub.subscription import Subscription |
194 |
| - >>> topic = Topic('topic_name') |
195 |
| - >>> subscription = Subscription('subscription_name', topic) |
196 |
| - >>> subscription.delete() # API request |
197 |
| - |
198 |
| - |
199 |
| -Pull messages from a subscription |
200 |
| ---------------------------------- |
201 |
| - |
202 |
| -Fetch pending messages for a pull subscription |
203 |
| - |
204 |
| -.. note:: |
205 |
| - |
206 |
| - The messages will have been ACKed already. |
207 |
| - |
208 |
| -.. doctest:: |
209 |
| - |
210 |
| - >>> from gcloud.pubsub.topic import Topic |
211 |
| - >>> from gcloud.pubsub.subscription import Subscription |
212 |
| - >>> topic = Topic('topic_name') |
213 |
| - >>> subscription = Subscription('subscription_name', topic) |
214 |
| - >>> with topic: |
215 |
| - ... topic.publish('this is the first message_payload') |
216 |
| - ... topic.publish('this is the second message_payload', |
217 |
| - ... attr1='value1', attr2='value2') |
218 |
| - >>> messages = subscription.pull() # API request |
219 |
| - >>> [message.id for message in messages] |
220 |
| - [<message_id1>, <message_id2>] |
221 |
| - >>> [message.data for message in messages] |
222 |
| - ['this is the first message_payload', 'this is the second message_payload'] |
223 |
| - >>> [message.attrs for message in messages] |
224 |
| - [{}, {'attr1': 'value1', 'attr2': 'value2'}] |
225 |
| - |
226 |
| -Fetch a limited number of pending messages for a pull subscription: |
227 |
| - |
228 |
| -.. doctest:: |
229 |
| - |
230 |
| - >>> from gcloud.pubsub.topic import Topic |
231 |
| - >>> from gcloud.pubsub.subscription import Subscription |
232 |
| - >>> topic = Topic('topic_name') |
233 |
| - >>> subscription = Subscription('subscription_name', topic) |
234 |
| - >>> with topic: |
235 |
| - ... topic.publish('this is the first message_payload') |
236 |
| - ... topic.publish('this is the second message_payload', |
237 |
| - ... attr1='value1', attr2='value2') |
238 |
| - >>> [message.id for message in subscription.pull(max_messages=1)] |
239 |
| - [<message_id1>] |
240 |
| - |
241 |
| -Fetch messages for a pull subscription without blocking (none pending): |
242 |
| - |
243 |
| -.. doctest:: |
244 |
| - |
245 |
| - >>> from gcloud.pubsub.topic import Topic |
246 |
| - >>> from gcloud.pubsub.subscription import Subscription |
247 |
| - >>> topic = Topic('topic_name') |
248 |
| - >>> subscription = Subscription('subscription_name', topic) |
249 |
| - >>> [message.id for message in subscription.pull(return_immediately=True)] |
250 |
| - [] |
251 |
| - |
| 27 | +.. automodule:: gcloud.pubsub.api |
| 28 | + :members: |
| 29 | + :undoc-members: |
| 30 | + :show-inheritance: |
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